ML20073S673: Difference between revisions

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J C:mm::nw;alth Edison C    One First National Plaza. Chicago, !!!tnois C'    Address Reply to: Post Othee Box 767 j                        Chicago lilinois 60690 May 2,        1983 l
nf
                                                                                                            ./2 Mr. James G. Keppler, Director                                                                    h Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road i
Glen Ellyn, IL          60137
 
==Subject:==
LaSalle County Station, Unit 2 10CFR50.55(e) Notification 83-01
 
==Dear Mr. Keppler:==
 
Commonwealth Edison filed a 30 day report to your office on March 16, 1983 concerning the status of the problems we experienced with
]        the Riley temperature switches installed in the leak detection system at LaSalle.
In that report it was indicated that the calibration procedure for these devices would be modified to solve the temperature off-set problem. This effort has been completed and presently the switch units have been recalibrated utilizing the revised procedure and are accurately indicating the proper temperature.
At the time of the 30 day report, we anticipated final resolution of the temperature module problem (hardware modification) by the end of April.            Presently, General Electric and Riley are still in the process of finalizing the solution.                        Meetings are planned in San Jose the week of May 2nd to accomplish this task.                                It is currently anticipated that final resolution will be expected by 6/1/83. A final report will be issued at that time.
If you or your staff have any questions concerning this activity, please contact us at this office.
Very truly yours, RAB/bmb/2926L i
0305100018 830502 PDR ADOCK 05000374                                                                                          ($2b7
                                                                                                                      /'
S                    PDR MAY    4 E63
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Latest revision as of 10:31, 20 May 2020

Interim Deficiency Rept 83-01 Re Temp Offset Problems Experienced W/Riley Temp Switches Installed in Leak Detection Sys.Calibr Procedure Modified & Switches Recalibr. Final Rept Will Be Submitted by 830601
ML20073S673
Person / Time
Site: LaSalle Constellation icon.png
Issue date: 05/02/1983
From:
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, 83-01, 83-1, NUDOCS 8305100018
Download: ML20073S673 (1)
v • d • e


Text

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J C:mm::nw;alth Edison C One First National Plaza. Chicago, !!!tnois C' Address Reply to: Post Othee Box 767 j Chicago lilinois 60690 May 2, 1983 l

nf

./2 Mr. James G. Keppler, Director h Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road i

Glen Ellyn, IL 60137

Subject:

LaSalle County Station, Unit 2 10CFR50.55(e) Notification 83-01

Dear Mr. Keppler:

Commonwealth Edison filed a 30 day report to your office on March 16, 1983 concerning the status of the problems we experienced with

] the Riley temperature switches installed in the leak detection system at LaSalle.

In that report it was indicated that the calibration procedure for these devices would be modified to solve the temperature off-set problem. This effort has been completed and presently the switch units have been recalibrated utilizing the revised procedure and are accurately indicating the proper temperature.

At the time of the 30 day report, we anticipated final resolution of the temperature module problem (hardware modification) by the end of April. Presently, General Electric and Riley are still in the process of finalizing the solution. Meetings are planned in San Jose the week of May 2nd to accomplish this task. It is currently anticipated that final resolution will be expected by 6/1/83. A final report will be issued at that time.

If you or your staff have any questions concerning this activity, please contact us at this office.

Very truly yours, RAB/bmb/2926L i

0305100018 830502 PDR ADOCK 05000374 ($2b7

/'

S PDR MAY 4 E63

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